During an equestrian show, a young girl falls from her horse and is complaining of strange symptoms which makes Hank believe her father is hiding something. Elsewhere, Divya weighs over telling her dad the truth about her job, and Hank meets Jill's ex-husband.

Hank treats a hallucinating woman. Meanwhile, Charlie and Jill move in together, while Divya and Raj anguish over their engagement party.

HankMed saves the passengers of a toppled Jitney; Divya deals with the fallout from her broken engagement; Jill returns with news.

Hank embarks on a fresh start with his medical practice and separates from his brother Evan, who also starts his own venture. As Divya attempts to reconcile the brothers, HankMed teams up once more in the face of a Hampton's emergency.

Hank & Evan's father Eddie makes his return to the Hamptons and schemes to bring his boys back together. Hank has a new patient who is participating in a zombie race for charity. Evan also has a new patient, a retired biochemist with a possibly sinister past.

HankMed treats an absentminded country club manager while Evan, with Paige's help, lands the business opportunity he's always dreamed of.

Hank attends a secret meeting in Manhattan; Evan and Jeremiah treat an Internet entrepreneur; Divya reconciles with her father.

After a winter abroad, Hank returns to the Hamptons to celebrate the latest addition to the HankMed family. Evan and Paige take a hands-on approach to their marriage. Later Evan hatches a plan to make Hank stay in town after a saxophone player falls ill. Meanwhile Divya experiences the joys of motherhood and a mysterious party guest brings surprising news for the Lawson family.